Case-hardening, &amp;c.



A. W. MACHLET.

CASE HARDENING, 8w.

APPLICATION FILED AUG.1'I,1908.

Patented Sept. 2, 1913 INVENTOR.

2 SHEETB-SHEET 1.

} W/TNESSES;

AVTORNEY Eiizabvih, in tiny-"minty bf l ninn ADOLPH W. MACHLET, OS IZZZZAEETH,

Applicatiai: filed iugasi ."e it knnwu tln'ii l, inmiz'u \V. ii'iAcnmi'i, a citizen 0f the Uniteii States. residing in and State of New Jersey, have invented (rerinin new and useful iniprnvunm'iisi in ()nse-Hurdein wing is spvr-ificat inn.

'l'iri iin'unlinn i'vlnius prini'ipaiiy in casshrii'iluning sin-nil ill'tii'ics mnmrding t0 the llhpl' flililiiitfi svl firth in initmi Swiss Lwlii'i's inient Kim. :iiui R kifil nitimngh the gn'esent improvenae-ms urn ism vi" use in ntheiwise iKfitiDg ()xw if {ingirini-igiul objecs (if she present inwniiim iin Emu-ease the c: icienny of Mn; nppm-nus ZHHi induce: tin: expems 0E vase inmlvning 21' heat-treating, and the: iime f 'jflii'iiii tinz'n'fm',

iHEEiPHL! m stnp iing {he machine or zippa mains in tcimi'gzc and rvch .i'ge: Hie same, the pram ing V ariiuivs in:t'nrnmimiiy 51m the rflori and mrgingj iinin mitmnz iicaiiy hm-0- i'i'm-in after H20 haw iiqi fliliij suii'zibiy :asc inmivniri n Mia-i Wisv zuttwi upon. i

iisi-i i iii'lii z: iiisi-inirgv ipening, which: is closed by the shutter; and by min-ans i-f' carngsecm'ed upon that paw ii the 1" tin: which exiends 5mm this 55w {Hymn-g, said simmer is aif'in *3 am; anii'nni'gifi will herein- L iinprw-wninnis provide? for feed- Specifimiion 0f Leif-em i i l i g i I i i i i i i i i l i i i l i i i I i i WG-5, v

mu in I M a pin f J1?) Paszlharfliening rains embodying the prezaalt img'u'nvi Liana and eievaiinn i fig: 4 n: 7% section taken winniwny of the fun i-=1 Fig. 5 einn if the nihez' and (ii? the ui'nn A In i rat-mt 1 in the fv in m" qviindn X'tnmia 1 2, pz'njcctin v V The iniiez ims burn an, as cki fort in cies v zmi Pei-clung (ii-uni of tile xiii-n1; and iizmugi an gnaw-hire site end M 2 inn i 2c indni Uihfll' by means of indoiied in 2: housing n charging Lil-1a mined Lima: 1

iine paintin ti The drum 3 i (mnwi, 7 ihmv ,ing its small end. The uz'tisi deseend from he cin'zie. tn H A of the drum M i, shew tndy :m- 1 up by swap :d in mi, 11

ried in the srim (312F862 If) {he HUM 'ing secured by any suitable device as by .eter of the hole 26 in the bolts 28. It will also. be seen that the diamdrum head con i siderably less than the diameter of e retort. 1, so that a part o'fthe drum head forms l an internal hrim or partial closure for the g retort, to prevent the artic fromthe retort back into the drum when the l latter has made half a revolution from the Fig. 1 posi ion; and preferably in addition l to this brim or haflie is provided an apron 30 to close the upper part of the hole j 26 at Fig. 1, or the lower part of said hole I when the drum is turned over, to form an} additional halllc to prevent escape (if the articles from the retort. I T le drum has a peripheral flange 31 I which fits in grooves 32 formed on pulleys suitably supported on hrachets 34- erected l upon the framework of the apparatus. l

The drum is also provided with "a gear son I sisting of a series of teeth 36 secured in a groove 37 formed in the face of the flange i 31; and a pinion 38 meshes with said gear and is fixed to a drirewvheol 259* connected to any suitable source or" power.

The retort. 1, which may he re considerable length to permit, the articles to lcmiiln therc- 5 in for any length of time before advancing I to the discharge opening 4, Il supporti cd upon rollr $59. the rriotl upon: axles 40 mounted or the furnace: upon pedestals a l, and t tiling in apertures P 39 formed in the furnace wall-i.

The discharge opening l in. the retort closed lij. a shutter in th dislt or ret rt head ix lilting Within L tort about at the curl o i tll lt. 4; is scorn-rd at on and forms an outlet for or other gas; a v'tll e l/l mag provided upon the uter end of said tL'nc to re lull: w ne ing of the The tnlie l3 al" 7 serves: as a stem or rod, whcrrliy the utter or head i3 is moved to \lilili and on 4 aperture '1'. 'clhis inmenlont effected aulonnltically hy elhow l5 sliding in the framework, and to the rod 43 by no: of UK: which are fixed upon the rod end the arm. proridl l with a c 1 48 to he engaged by a ram il red up n ancxtension 50 or" the retort ill. eh p11 from this end of the furnace. As the r revolves in the direction of t w, 1 l at cam 49 acting upon the rollm st;

the furnace :2. i1 rnd of the shutter vitiatwl cnrlmrizing m lllt lnilil). 1 means of mi arm or a gnnlc i a 51W]: noun 1' 4 i t' ,r Join uiopoing Q noted that the extension 5 end of the drum.

a tilt? arm to the left together with the rod nd the shutter piston 42, sufliciently to se the opening', thus preventing the as rape of the articles during the principal portion of each revolution of the retort. The cam 49 merges into a collar 51, which encircles the principal portion of the extension 50, whereby the shutterfis held in its closed position until a second cam strip 52, secured up n the drum about at right angles to the cam strip 49, engages the cam stud 4S and forces it to the Fig. l position, thereby opening the hole 4 for the discharge of another quantity of carbu'rized articles, which may fall into a receptacle 53. It will he of the retort may he supported upon rolls 54: mounted in brackets 55 secured to the head 56 of this 'll'ioreceptacle 53 is preferaloly closed in j prevent undue loss of carhurizing gas from the retort,

and also to prevent access of air to the heated articles. A chute 33 is inserted into the bottom of the furnace, and leads from the retort (to which the chute closely fitted) to a neck 53 formed on the cover of the receptacle 53. The tubular rod 43 may be packed by a gland 57 secured to a cover or head 58, which is removahly secured to the end of the retort by any snithle catches o9.

The retort 1 is mounted upon the rolls 3!) i and 54 in a manner to permit tree longitudinal extension of the retort: due to the heating and cooling thereof. ivioreover when worn out, it may he readily removed and rephrced; it being only necessary to unscrew the holis- 28 and disconnect the arm 45, when the retort may be witl'idrawn bodily from the :qmaratus and a new one substituted; the rains, head and other appurtenances-he ing transferred to the new'retort.

it will he understoml that the drum and the lock 7 may he of any suitable capacities, and that the drum may he charged while it i1-- in rrvolution; so that after starting the npzai'utus. it is only necessary to charge the as it is filled; the case nnnlvniug; operation proceeding continuously and the depth of the case luu'dening hcing practically uniform upon the articles n ring through the retort, since they all remain in the retort for ahout. the same length ol time. and are equally subjected to the l on. itfill t 'll'i ifl' treatment.

Variotiene may he resorted to within the :c of the i VOlliiOXl, and portions of the ri'onlei'its may he used without others. a 'it thus described my invention, I

claim o conihination with a, furnace, of a w; uuilun the furnace and pro ecting u an end thereof and revolu'oly mounted,

drum upon the projecting end of the to mm from time to time and remove thc' unihw Jain,

of :1 $000 and Nib of the (hum. t

remit.

5. Tiw mmzif rvtm't within 41w IR! h) neuiziw iin min? fwd tin-m 11m iihw r SniJ iTHlli mu! im'i' hing in NH",

i ili ili 'h H i i mi hninn and projecting from the. i'm'nuw, and H drum u iun tlm pmjwting (Hi of mid wlurt in i'vr'eiw the m'tivios, and having moans. imriusiw 01" a swim. in NM i 11 :n 12PM: into said rclml, mid drum rinsed h EHIMHH (if :i shli runnry link provided viii a vm'iw ui' gun-S and having vimtv w iii1 inn-go into said drum.

H. The mmiliinzliiml with u. furnzur u, of .i l'lflli within tlm furnace mmmtui for revulinimi HIHi prnjmriihg from the fmnaue, and :a drum upon the pi'njwting Mid (if said n-mn 1n rem-in, thv ulfi'ivs, and naming minim. inrlusivv of a swamp, in fwd din 2ninn said n-tm'i. snii! irum iIiHS'A! by uwnw- Mi :1 smiimiarv luck m'widvd with .w-iivs Hf QHil'H and raving n vhuio tn dis- 41mminlu Said drum; and nwzsllr'; tn introu'm-v into said H-tm'i :l supply n! gas or Uiil m zwi 011mm The hismwi :UtiQii-S.

1;. Thu zonillinaiiim with :1 i 'LHHHCC. of a. i-i-turt within the fm'mms mount-w] for I'PVO iniin'n am] projecting mm Um mum-0, and r2 'hum upfiii the projecting i'iiii of rdid HP 1m! in rweivu U10 zui i111; and having iwzws. inviusiw ui' a in feed the ui'tivlvs into said reim't sun] iirmn dosed imam of a sizitimmry im'k gli'm'iiiwl with SPLIW-I. of gates and having :1 cimtrto disimrgiinto said drum, and an irxlvi pipv for gas opening into said (11mm :iwnlving retort wifhiz: the furmw. r. H'-

ram! having a vixm'i- 1n iiiwzhmgw inc.- Hu- 1.). rifl vmnivinzii uu will: F inn-w. a: 2i

fuzzww. u ruinto the retort, and means being provided to supply gas to the retort.

17. The combination of a lock in the form 5 of a box having indcpenrlentiy operahlcf gates, a re eiver drum into which said lock discharges, roils upon which Raid drum 5 turns, a gear connected to said drum, ii poWer-drivcn derive engaging said gcar, said drum having dincharging means, a rcg tort into which the nrticleaare discharged from said drum, and :1 furnace in which said rctoi't is nuiunted.

19. The combination of a lock in the form of a, box huving independently operable gates, n rocciwr drum into which said lock discharges, rolls upon which said drum turns, a gear cumin-(ted to said drum, :1 [10W8!' (l|'i\lll ilcriicugziging said gear, said drum having discharging incnns, a I are i scharged retort into whi h thc fliiiifh, from said drum, and :1 furnace in which said retort is mounted; ouid retort eXtcnding from the end of said furnace and t'ix i to said drum, i'tiilH on which said rctort i, up port/ed for rcvol :tion. nnd incnm at the on poSite end of tho retort for diselnirging the articles thei'ei'ron'i.

19. The combination of a lock in the form of u hox having inchpcndcntly operable gutcn, n recoin-i druni into which said loci; ,li. hzirges, rolls upon which Said drum turnn, :1 gear connected to said drum, n pim'cndriven device engaging said gcnr, Quid drum having discharging means, a retort ini'o which tin articles 11 re discharged fr m said drum, and ii furnac in which said retort is niountcd; means b ing provided to snppiy :1 current, of gas to thc rc'Lort to act upon the heated .U'iiiliiffi.

2'30. The conihinuiion oi a lock in the Form of a box liming independently operable i gates, 21 rcccix'cr drum into which sziid lock I di clniigi rolls upon \xhich nid drum 1 turns, a gear co'nncctod to snid drum, n! pmvcrdrivcn dcvicc ongun'ing said gear, I said drum lmving fl nch-Filing nczms, a 16- I t l i tort into which the :irticics are discharged from mid drum, and :1 furnace in whicln Said rctort is mounted: r: shutter fitted in said retort and innrnhlc thcrcniong to close and open the (ii-li2l,2c oi'iiii'c. and mocha i nism for rcciprocnting' said whuttcr.

21. The combination of n iock in thc form 5 of a box having intlepcinlcntly operable} gates, at recoivor drum into which mid lock 2 discharges rolls upon which said drum turns, a geur conncctcd to mid drum. n iou er-drii'cn devi e cngnging mid gcnr, said drum having; discharging moans. u retort into which the articl ni'o discharged from i mid drum. and n furnace in which said retort i nlountcd; :i ehutter iitted in re tort and movable thereiilong to close and 3 open the discharge orifice, and mechanism for reciprocating said shutter inciuding 5 n revolving i'ctort ihcriin hoainig 11 d m co vcr secu red 5 opening, of a. shutter for said on "on ms niouni'cii noon :in extcnsion of said re- 22. The combination of n loci; in the form of a box having ind wndcntly operable gates, a receiver drum into which said lock discharges, roli upon which said drum turns, a gear connected to said drum, n pmvcr-th'ivcn device engaging said gear, said drun'i having disc! g ing means, n retort into which the articles are dischnr ed from said drum. and ii furnace in which said retort is mounted; said retort. extending from the end of said furnace and fixed to said drum, roils on which said retort; is supported for revolution. and means at the opposite cud of the 'lotort for difsciiar'ging the articles therefronti; hutter fitted in mid retort and ino'i'nl'iie thcreniong to close and open the discharge orifice, and mechanism for reciprocating szs id shutter:

33, The combination of :a lock in he form of 2:. box having iin'legmnicniiy ti pcrnhio in clo d gains :i rccciicr iii'o: i into n hiirh said box diwlmi'g s, roli;v upon which snid drni'n turns. inczins within sa d di'nin f0! diseharg in; the urticios thercii'oni, ti retort, into which the iirticlcs :ii'c dischn j l, n furnace in which said retort. mounted, said retort extending from tho cini oi ni l furnace and connected to said druni mono; for dischnigwt, niiul Inf-Hi5? to to tin lUtOFt U) mi nith It iurnnce and linrge openino', of :1 Junior for m'ii i i i-Hing, cams monntcd upon :in Xl !i -i =i'i 1 i ihe rt'toi't which projects from it! Jun "cc. nnd :1 siuzttcr carrier li /tiillt'ii cums: 2i ((i\'i1'ifllt'fiti upon ihw in? oi Viv LWitifiiifit, said .shuttcr in thc form n ,u ion or dink fitting in the cyiunlcr and iii' i\iiictl with I: hollow stcin for the nn age of L and at gland jirovidcd in said wow toi lid stein. Tin: coinhinzui n with n fui'iiziw and a rcvoiving retort thcicin hn. Eng :1 discharge opcning. of n nli ittcl for mid opcning, cams niountcd upon :in cl\lori-iflii of the retort which projwt from snid formic-c, and a, hnttcr t'iii'ii'i' opcrntcd in' said came; :1 upon the end of the extension, iid shutter in tlnform of ii piston or dish fitting in the cylindcr and provided with a hollow stem for the passage, of gas, and a gland providc l in said cover for Said stein; tho hitter having El regriiiatnhle vcnt and connected by an opcrut ingg arm to said coma 26, The coinhiinn'ion n'iih ll furnncc, and :1 rcvoh ing retort thcrein has in n dis harge min; cams upon an extension of thc i'ctoi't, which pro jeets from said furnace, :i cover secured upon said (EXiQXisiOl'l, said shutter in the form of a piston or disk fiiting in the cylinder His? ' rrhzargod, a furnace in whivh and rein-H ES n'muiitw], Said rot/ ft ext mling fimmgrh fix: sin-'5 mean nd of 516: furmw {and firm? m mid drum. J3, irwii mid HHS -H which 5356 wilan't is sum-Mimi n-nrmth 51, m0: 15 at {119 upmysim and if hr :wi-Wi in? i: harging the :n'tivkw flwrefmm, 111mm bi 21g providwl m $111114; currvm m". gas to the retih't to act; upon the heated provided with :1 hollow stem for the g a Ivtmf intn which the aziivlvs aw di in; op mting 5 Far Imding :n'

37 11: :1 hardening irun w saw Mimi 11, in the farm of a in); having. upper 5 w and iowcy iwi yi-n-ilvrlz1y operable inclwed articles. i1 bhuiier fittud in said retnri', mu! gain-5, l: chutu Juwrl'niing 5mm mid 110x, :1 membie thurealong to class and Open She gm. up fly 11 npv; g: 11 0 said chute, i Iisx'burgv ufifice, and mechanism for red wmivai 0i tapering 3mm inn; xjhe sunk; end E z'umt ng said shutter, including cams mnmzi x ru al; Ewing M Hymn an extensinn of said retort prwwbmg 'iie joint mg Sw m the: Yuma av, said extension balm: g0

0m: kip 5 to surfing. and m am: in IVYiI- i an; me and vzms'sv the :1

, chargi and having gates movable independently of each other.

34. carlmrizing apparatus having means for automatically feeding, heating and disng articles, said means including a retort, means for revolving said retort, a magazine connected to said retort to revolve therewith. means provided with a lock for conducting articles into said magazine, nieans to feed the articles gradually from the magazine into the retort, automatic discharging means at the opposite end, of the retort, and means for charging the retort with carhurizin gas.

3- The comblnation with a revolublc re tort, and means f r charging the same with carhurizing gas, of an article feeder connected to said retort to revolve therewith, said retort having a discharge opening, and means connected to said retort to revolve therewith, to effect the automatic opening: and closing of said discharge opening.

36. The combination with a revoluhle retort, and means for charging the same with carburizing gas, of an article feeder connected to said retort to revolye therewith, said retort having a discharge opening, an internal shutter forming the end of the retort, and mechanism connected to said shutter for reciprocating it during the rotm tion of the retort, to close and open the communication between the retort and said opening.

37. The combination with a furnace, of a retort rota-table in the furnace and having at one end a drum or magazine. fixed thereto, said drum provided with a lock comprising a series of gates, whereby the drum may be charged, means for introducing gas into the retort, and means dependent upon the rota-- tion of the retort for feeding articles thereinto from the drum.

The combination with a furnace, of a retort rotatable in the furnace and having at one end a drum or magazine fixed thereto, said drum provided with a lock com prising a series of gates, whereby the drum may be charged, means for introducing gas into the retort, means dependent upon the rotation of the retort for feeding articles thereinto from the drum; said retort being provided at its other end with a discharge opening, a receptacle in connection with said discharge opening, and an automatically operated shutter for said opening.

39. The combination with a furnace, of a retort rotatable in the furnace and having at one end a drum or magazine fixed thereto, said drum provided with a lock comprising a series of gates. whereby the drum may be charged, means for introducing gas into the retort, means dependent upon the rotation of the retort for feeding, articles thereinto from the drum. said retort being provided at its other end with a discharge opening, 21

receptacle in connection with said discharge opening, an automatically operated shutter for said opening; and a tube upon which said shutter is mounted; said tube serving as a vent for the retort.

An apparatus for continuously casehardcniug iron or steel articles. comprising a framework, a lock in the form of a box having upper and lower independently operable inclosed gates, a chute descendin from said box, a gas supply pipe opening into said chute, a conical or tapering drum into the small end of which said chute dis charges, means being provided for packing or closing the. joint between the chute and the drum, an interior scoop on the floor or wall of the drum at its large end, a hopper within the drum to receive the discharge from said scoop, a cylindrical retort fixed at one end of said drum head, the latter having an opening from said hopper into said retort, a furnace through the walls of which said retort extends, the latter having a discharge opening at its end opposite from said hopper, a shutter fitting in said retort and movable endwise thereof to close and open said discharge opening, a detachable cover or head closing the end of the retort barrel opposite from said hopper, a tube opening through said shutter and forming an operating stem or rod therefor, said tube having at its outer end a discharge for the spent gases, an arm supported upon the framework for a sliding movement and connected to said rod or stem to move said shutter to and fro in the retort, a stud upon said arm, and means to reciprocate said arm and cause said shutter to open and close said discharging opening.

41. The combination of a lock having independently operable inclosed gates, a receiver drum, means within said drum and including a scoop for discharging the articles therefrom, a retort into whichthe articles are discharged, a furnace in which said retort is mounted, said retort fixed tosaid drum, an orifice being provided at the opposite end of the retort for discharging the articles therefrom, means being provided to supply a current of gas to the retort to act upon the heated articles, a shutter fitted in said retort and movable therealong to close and open the disiirharge orifice, and mechanism for reciprocating said shutter.

42. The combination with a furnace, -of a rot atablc retort therein, a discharge chamher for one end of said retort, a magazine fixed to the other end of said retort, a closed loch having' a gland connection to said magazine: means being provided for supplying gas to he interior of said retort, and

both said magazines chamber being closed gas, means dependent the retort to feed the and said discharge to prevent escape of upon the rotation of articles thereto from lie magazinv, an opening being provided from mid rvlm'i into said discharge receptmrlm and mmm dependent upofi the rota inn uf tinr-zmm for wponing and closing said npuiiing.

41 (\n :ippm'alus for mniinunusly case i llll'tll'lllhf imn m" Fla-eel articles, Qmn 'u'ising 2i lurk in :xflu-m m" n lmX inning; mum and lmwr imiv m-inlmily upel'able incllisvzl g'zxivfi :1 vhutc ilmwntling from said lmx; a mm] m" lnmi'ing drum into the small 9W3 Hi \vlm-h will -lmle! ilisclmrgea, an infiurim' mop UH lllv lit-mini" wall ni' .ihe drum #3 large end, :1 hopper within flue ,dm; 7 21: re ceive the disa'mirge from said sw rm a 1% tort fixed a? one end to said drum lkQf-l'i. the

latter having an opening from said imppei 1. int said relnrt, a furnace through the wall 1 of which saici retort amends, the latter hav ing a discharge opening at its end oppfisiw from said hopper, and a shutter fitfing in said retort and movable endwise ihereaf to z-lusa and open said discharge opening.

M. .\n apparatus for ('mitinnmisly HWli' lug mvtal :iriivh-rl. mmprising :1 MM: liming imlepvnilvntly operable inclused gatim a; mimil m' hipwing rlrum mm \vlnuh :mui

limr or will wf he drum at its large and, 1:

hopper With n the 1.2mm to receive the dis charge 5mm Hlklfl \cwp, a retort fixed 2'; one

uml said slum: iltfld, tile lattvr having an lock lififi! or :wp w mtmn il'lfi drum to meeive lie dis vlmrgL. "mm said ,"ZFZQUD, a retnrf ii. emu W i will; (ii-um haul, the latter havii g i r limvnsi an interior Sump an the an upvning from Mild hoppfir, u fm'mm: m i which wi l U'Ulfl i mtambly mimmm i'lie j rum-t l1 sing a liisvliarge opening at is end oppo its from said (lrum. a S JUlUJI fitting in mid Hm-l null mnvzili-l z miilavise thou-Hf t alum and open :ii ,i iwrlxzwga owning. a detachable (w? 0: lie-ml zlosing the end ()f the refm lm'rvl uppusite from said lmp wg l awning tlizwmgli @anl Fi .u u!

H fin mmnmitus for mntimwmly WM- ing mm: amides, min mising iuvli in mg li'2\'lij}.ll.'}i(l(11lly uperalzlg incl segl u :m'icul or tapering drum Um) incl: Saul Emil; iiir 'lia' 'ges. an interior scoop n lliv lie-z)? m- \x'nll flan c lmm as its large ifr'l mil emble inniosed {fa (FE a: "Hlifill m mg'nii-mg drum into which saai i l" the drum at its large and, :1

gates,

Hm, the drum to receive the disnid swoop. n, retort fixed at one H. mm the latter having an will lmppur. a furnace in u'i' i. mmtalvly muuntgd, the hinge? awning at its and, 5mm, a shutter fitting will isim'zilslv mulwisw tlierei'if 2M1! wi l ll Marge opening, a iwml z-lcsing the end of .w: m iv 'i'mm said hopper, p m 2n iliai'filigll said shutter n ltiig stem 01' rod thereaux-mg at it-s outer end a v iln' 5p: gases. 1;; pm'utus for continuously treati l ii -lire. cumprising a framework, mixing imlvpendently operable inwniml m: tapering drum into di chavrges, an interior l 1" DE wall 0f the drum at its 1-1 rl jfi'l' within the drum to rei img: from said scoop, a retnrt iixwl a: Wild in Fldii'l drum head, tlw

i laifm 2w w m rygwfiiglg from spid hopper, 2L mm; in much sa d retort is rotatably mumm i wtort having a discharge wgrvmng at 1 mrl Hppnsim from said drum,

m clcse and open said disan arm supgorted upon the i :1 sliding movement 213ml con- -1 Huttr to move. it to andifro an and means to reaiprocata said lid shutter in open and close U i'iiiwl'lil'lg *Hftilia for continuously heat mi 1:1 :atwl articles, com rising a imgruzirrie, a cylin rical refirms in Hu in said drum, the latter upswing mm said ho er into 321% $0 feed the artic es from reta l-t, a furnace through M1 mid retort extends, the '1 fliwlmr'g: spelling at its end :{hl lrnm, and a shutter fiti, movable to close and 5e awning.

m-ntinuously heat- ;1 rum-4, comprising a 'im, a cylindrical re- -mi i .(l il -um, the latter i l l l l l lmmng H Lg. .in Imm will hopper into mil :4 h: (l U24: articles from Kin? ism .JHQ) ugmninu at its end um; li ni drum. 1i shutter fitting in win w MU i hv-tul'lv m cum: and open will m): :1 mmur head dos-- 1 in iiw ml Ff F. rewlt barrel 0 posite fmm fill! 5",)21". 1 tube opening t rough w ll fiiilllli vurwl fm min z an operating stem mrwl Km. mini ml? having at its NH?" 1 (2' 7 "Or Iliif spent git-S88.

. 12;: in sa d retort and movable UMMWH,

an arm supported upon the framework for :1 sliding mm'ement and connected to said I in tin: retort, a stud the articies from the drum into he retort j a furnace through the rvtm't extmlds, the latter having a discharge opvning at; its end ugiiposiiie from said drum, :1 siluiiur fitting in vsaid retur'r and mnvabie to close. and "pen said discharge opening,

Waii of which said rm] 0: Arm to move said shutter h, and fro upun said arm, and and arm and cause imam to rcriprmratu and 01050 said (hsp said shutter [a open charging opening.

ADOLPH V. BIACHLET.

Witnesses I SAMUEL R. OGDEN, PHILIP C. OS'DERMAN. 

